Algebra: Journal of Matematics, Statistics and Computation

Pengaruh Growth Mindset Terhadap Kemampuan Pemecahan Masalah Matematika Siswa Kelas VII DI UPT SMP Negeri 1 Linggo Sari Baganti

Okviani Syafti — 2025-12-28

Penelitian ini bertujuan untuk mengetahui pengaruh growth mindset terhadap kemampuan pemecahan masalah matematika siswa kelas VII di UPT SMP Negeri 1 Linggo Sari Baganti. Jenis penelitian yang digunakan adalah penelitian kuantitatif dengan desain regresi linear sederhana untuk mengetahui pengaruh antara variabel bebas dan variabel terikat. Teknik pengumpulan data yang digunakan adalah metode angket dan tes dengan sampel penelitian sebanyak 26 siswa kelas VII.U. Berdasarkan hasil analisis deskriptif, diperoleh skor growth mindset siswa dengan nilai tertinggi 76, nilai terendah 61, dan rata-rata 68,42 yang berada pada kategori sedang. Hasil tes kemampuan pemecahan masalah matematika siswa menunjukkan nilai tertinggi 98, nilai terendah 22, dan rata-rata 76,46 yang berada pada kategori sedang hingga tinggi. Hasil penelitian menunjukkan bahwa growth mindset berpengaruh positif terhadap kemampuan pemecahan masalah matematika siswa, artinya semakin tinggi growth mindset siswa maka kemampuan pemecahan masalah matematika juga cenderung meningkat. Namun demikian, kemampuan pemecahan masalah matematika siswa tidak hanya dipengaruhi oleh growth mindset, melainkan juga dipengaruhi oleh faktor lain di luar penelitian ini.

Hubungan Rasa Percaya Diri Dan Kemampuan Komumikasi Matematis Siswa Kelas IX MTS PP Darussalam

Okviani Syafti — 2025-12-30

Mathematical communication skills are an important competence in mathematics learning, especially in the topic of Systems of Linear Equations in Two Variables, because students are required to express ideas, construct mathematical models, and explain solution steps systematically. However, these skills are still not optimal and are assumed to be related to affective factors, one of which is self-confidence. This study aimed to determine the relationship between students’ self-confidence and their mathematical communication skills among ninth-grade students of MTs PP Darussalam. This research employed a quantitative approach with a correlational design. The subjects of the study were 27 ninth-grade students selected using saturated sampling. Data were collected through a self-confidence questionnaire and a mathematical communication skills test. Data were analyzed using descriptive statistics and the Pearson Product-Moment correlation test after meeting the assumptions of normality and linearity. The results showed that the average self-confidence score of the students was in the moderate category with a score of 52.56, while the average mathematical communication skill score was also in the moderate category with a score of 70.22. The Pearson correlation test indicated a significant positive relationship between self-confidence and mathematical communication skills, with a correlation coefficient of 0.62 and a significance value of 0.001. These findings imply that improving students’ self-confidence should be an important concern in mathematics learning because it can support the optimal development of students’ mathematical communication skills.

Validitas Pengembangan Media Monopoli Pada Bangun Ruang Sisi Datar

Silvia Azizi — 2025-12-29

This research was motivated by the lack of media that supports the learning process. In addition, students want media that is fun and enjoyable. One solution is to design a monopoly game, so that students will be motivated to learn. The purpose of this research is to produce a valid monopoly game for flat shape material. This research is a development study using the Plomp model. The Plomp model consists of three stages, namely preliminary research, prototyping, and assessment. Data were collected through observation, interviews with educators and students, and validity questionnaires. This research only consisted of two stages, namely the preliminary research stage, which was a preliminary analysis in the form of a needs analysis, curriculum analysis, student characteristics analysis, concept analysis, and literature review analysis. In the prototyping stage, the product was designed based on the needs analysis data. Next, the product was validated by experts in the field. From the validation process, assessments were obtained from experts in material, media, and language, namely 85%, 88%, and 93%, which were categorized as highly valid.